212020031099 has 2 divisors, whose sum is σ = 212020031100. Its totient is φ = 212020031098.

The previous prime is 212020031089. The next prime is 212020031117. The reversal of 212020031099 is 990130020212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212020031099 - 2⁸ = 212020030843 is a prime.

It is not a weakly prime, because it can be changed into another prime (212020031089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010015549 + 106010015550.

It is an arithmetic number, because the mean of its divisors is an integer number (106010015550).

Almost surely, 2^212020031099 is an apocalyptic number.

212020031099 is a deficient number, since it is larger than the sum of its proper divisors (1).

212020031099 is an equidigital number, since it uses as much as digits as its factorization.

212020031099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The spelling of 212020031099 in words is "two hundred twelve billion, twenty million, thirty-one thousand, ninety-nine".